82773215 has 16 divisors (see below), whose sum is σ = 119493120. Its totient is φ = 53771040.

The previous prime is 82773191. The next prime is 82773241. The reversal of 82773215 is 51237728.

It is not a de Polignac number, because 82773215 - 2¹⁰ = 82772191 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 61571 + ... + 62900.

It is an arithmetic number, because the mean of its divisors is an integer number (7468320).

Almost surely, 2^82773215 is an apocalyptic number.

82773215 is a deficient number, since it is larger than the sum of its proper divisors (36719905).

82773215 is a wasteful number, since it uses less digits than its factorization.

82773215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124502.

The product of its digits is 23520, while the sum is 35.

The square root of 82773215 is about 9097.9786216500. The cubic root of 82773215 is about 435.8094147111.

The spelling of 82773215 in words is "eighty-two million, seven hundred seventy-three thousand, two hundred fifteen".